64321087 has 8 divisors (see below), whose sum is σ = 68755680. Its totient is φ = 60023040.

The previous prime is 64321079. The next prime is 64321141. The reversal of 64321087 is 78012346.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 64321087 - 2³ = 64321079 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64321787) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 33162 + ... + 35047.

It is an arithmetic number, because the mean of its divisors is an integer number (8594460).

Almost surely, 2^64321087 is an apocalyptic number.

64321087 is a deficient number, since it is larger than the sum of its proper divisors (4434593).

64321087 is a wasteful number, since it uses less digits than its factorization.

64321087 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68273.

The product of its (nonzero) digits is 8064, while the sum is 31.

The square root of 64321087 is about 8020.0428303096. The cubic root of 64321087 is about 400.6678156850.

The spelling of 64321087 in words is "sixty-four million, three hundred twenty-one thousand, eighty-seven".